Notation

I= number of projects available for selection;

_amg_ps_001 = the decision vector;

_amg_ps_002 = net present value of project I ;

_amg_ps_003 = initial outlay of project I ;

C= initial available capital;

Fixcharge Positive Function is defined as follows:

_amg_ps_004

Optimization Problem 1

Maximizing net present value

_amg_ps_005

(CS.1)

subject to

Constraint on available initial capital

_amg_ps_006

(CS.2)

Bounds on positions  

_amg_ps_007

(CS.3)

 

Optimization Problem 2

Maximizing net present value

_amg_ps_008

(CS.4)

subject to

Constraint on available initial capital

_amg_ps_009

(CS.5)

Bounds on positions  

_amg_ps_010

(CS.6)

 

It can be proved that the optimal solution of the optimization problem2 is binary, i.e. all components of the optimal vector are equal to 0 or 1.

Initial Data

Number of projects available for selection: I=7.